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Old March 14th, 2019, 16:32
BAXJ96 BAXJ96 is offline
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A couple mod questions

I have a couple things Iím curious about but each on their own is not enough to warrnt a whole thread. So I figured I would put them all together.
1st question. Is there a data buss I can tap in a 96xj? I have installed an overhead console from a 97? Zj and it works well enough but I would like if I could get data from the ecu to show trip mileage, mpg, miles to empty etc. I have read the overhead console write up and it has lead me to believe there is a buss somewhere I can tap but I donít know where that is.
2nd question. What degree shim do I need for a 4.5 inch lift and no crosmember drop? I am removing the drop and I need a new shim I believe.
Lastly. Does anybody know if itís legal in mass to delete the tail pipe and dump the exhaust right out the muffler before the rear axle.

Any help on any of these would be awesome thanks!
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Old March 14th, 2019, 16:49
BAXJ96 BAXJ96 is offline
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Re: A couple mod questions

I just realized that I posted this in OEM rather than modified. Face palm. Can someone give me hand getting this moved please?
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Old March 15th, 2019, 08:00
JeepNoob JeepNoob is offline
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Re: A couple mod questions

According to the Mitchell wiring diagram I looked, the '96 does have a data bus, but it runs directly to the OBD II port and nothing else. I wouldn't be surprised if a factory '96 PCM doesn't even have the functionality you're looking for to begin with.

As far as getting rid of the tailpipe behind the muffler, legal or not, I wouldn't do it. Did it on my '96 (got rear-ended. Jeep still ran and drove but the tailpipe was crimped and trashed, so I just cut it off) and the new exit right from the muffler ended up being right next to the U-joint for the rear diff. A professor of mine (who's been an ASE-certified master mechanic since 1976) saw that and asked in a "you-know-better" sort of way if I thought dumping all that exhaust heat right next to the U-joint was the best thing for the grease in it. I agreed it wasn't, but also told him I planned on replacing the entire exhaust with a performance system anyways.
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